Directions
<ol class="no-list-style"><li class="MethodStepper"><h4 class="step-title">Step 1</h4>Brown the butter by placing it in a medium saucepan over medium heat. Let it melt completely, then continue cooking, swirling occasionally. The butter will foam, then the milk solids will begin to turn golden and give off a nutty aroma. When the solids are amber-brown and smell intensely toasty (about 5-7 minutes total), immediately transfer to a heatproof bowl to stop the cooking. Let cool for 10 minutes until warm but not hot.</li><li class="MethodStepper"><h4 class="step-title">Step 2</h4>While the butter cools, prepare the smoked sugar if making from scratch. Place granulated sugar in a shallow heatproof container and use a kitchen torch to gently heat until the sugar just begins to smoke lightly, or place sugar in a smoker at low temperature for 20-30 minutes. The sugar should remain granular but take on a slight smoky aroma.</li><li class="MethodStepper"><h4 class="step-title">Step 3</h4>In the bowl of a stand mixer fitted with the paddle attachment, combine the cooled brown butter, smoked sugar, and brown sugar. Mix on medium speed for 2-3 minutes until well incorporated. The mixture won't be as fluffy as when using solid butter, but will become slightly lighter in color.</li><li class="MethodStepper"><h4 class="step-title">Step 4</h4>Add eggs one at a time, mixing for 30 seconds after each addition. Add vanilla extract and mix until fully incorporated. The mixture should now be glossy and slightly thickened.</li><li class="MethodStepper"><h4 class="step-title">Step 5</h4>In a separate bowl, whisk together the flour, baking soda, and flaky sea salt. With the mixer on low, gradually add the dry ingredients to the butter mixture until just combined – do not overmix as this develops gluten and toughens cookies.</li><li class="MethodStepper"><h4 class="step-title">Step 6</h4>Fold in the chocolate chunks by hand using a spatula, ensuring even distribution without overworking the dough. The dough will be slightly softer than traditional cookie dough because of the melted butter.</li><li class="MethodStepper"><h4 class="step-title">Step 7</h4>Cover the bowl tightly with plastic wrap and refrigerate for at least 24 hours and up to 72 hours. This crucial salt-aging period allows the salt to fully distribute throughout the dough, extracting moisture from the flour proteins, developing the flavors, and creating a more complex, caramelized taste profile when baked.</li><li class="MethodStepper"><h4 class="step-title">Step 8</h4>When ready to bake, preheat your oven to 175°C (350°F) and line baking sheets with silicone mats or parchment paper. Remove the dough from the refrigerator and let it sit at room temperature for 15-20 minutes to slightly soften.</li><li class="MethodStepper"><h4 class="step-title">Step 9</h4>Portion the dough into 65g balls (about 2 tablespoons each) and place on the prepared baking sheets, leaving 7-8cm between each cookie to allow for spreading. Gently press the tops to slightly flatten and sprinkle each with a small pinch of additional flaky sea salt.</li><li class="MethodStepper"><h4 class="step-title">Step 10</h4>Bake for 11-13 minutes until the edges are set and golden brown but the centers still appear slightly under-baked – they'll continue cooking on the hot baking sheet. For perfect cookies with contrasting textures, avoid overbaking; the centers should look just set but still soft.</li><li class="MethodStepper"><h4 class="step-title">Step 11</h4>Allow the cookies to cool on the baking sheets for 5 minutes (during which time they'll finish cooking and firm up slightly), then transfer to a wire rack to cool completely. For the best texture contrast, enjoy some warm while the chocolate is still melty, but save some to experience at room temperature when the flavors have fully developed.</li></ol>